Cress Heads Lesson Plan

Instructor: John Hamilton

John has tutored algebra and SAT Prep and has a B.A. degree with a major in psychology and a minor in mathematics from Christopher Newport University.

This lesson plan will teach your students about cress heads. They will also participate in an exciting hands-on activity in which they will actually make their own cress heads with eggs.

Learning Objectives

After studying this lesson on cress heads, your students will be able to:

  • Differentiate how cress grows with sunlight and without it
  • Explain what cress is and what people commonly do with it
  • Make their own cress heads with eggs


1 - 1.5 Hours


  • Acrylic paints
  • Cotton wool balls
  • Cress seeds
  • Felt-tip pens
  • Internet access
  • Raw eggs
  • Teaspoons

Key Vocabulary

  • Cabbage
  • Germination
  • Mustard family
  • Piquant
  • Pungent
  • Radish

Curriculum Standards

2-LS2-1. Plan and conduct an investigation to determine if plants need sunlight and water to grow. Assessment Boundary: Assessment is limited to testing one variable at a time.

2-LS4-1. Make observations of plants and animals to compare the diversity of life in different habitats. Clarification Statement: Emphasis is on the diversity of living things in each of a variety of different habitats. Assessment Boundary: Assessment does not include specific animal and plant names in specific habitats.

Instructions and Activity


  • Let your students know they will be learning about cress and cress heads.
  • Ask them if anyone is familiar with cress, or has ever made cress heads previously.
  • Review the key vocabulary terms.


Part A

  • Inform your students they are going to be making their very own cress heads!
  • Divide students into pairs.
  • Pass out the necessary material to your students.
  • Tell your students the following:

1) Gently remove the top portion of your raw eggs (about one-third from the top.)

2) Tip over your eggs to remove the inside whites and yolks.

3) Rinse out the inside of your eggs, being extremely careful not to break them.

4) Use your acrylic paint or felt-tip pens to create your own unique designs on your eggs. Be careful not to press too hard and damage the eggshells.

5) Allow the eggs to sit for about ten to fifteen minutes to dry out properly.

  • In the meantime, you can have a discussion group with your students:

Part B

  • Explain to your students you will be having a discussion group about cress.
  • Arrange your students in a semi-circle while you speak to them.
  • Find an internet source that offers facts and information on cress to read to the class.
  • After reading about cress, ask some questions to check for understanding. Below are some example questions to ask.

a) What exactly is cress or garden cress? (a plant related to cabbage, mustard, and radish)

b) How long does it take cress to germinate? (just a day or two)

c) When is cress mature and ready to be eaten? (just five to seven days)

d) How tall will the plants be then? (an inch or two)

To unlock this lesson you must be a Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use

Become a member and start learning now.
Become a Member  Back
What teachers are saying about
Try it risk-free for 30 days

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it risk-free for 30 days!
Create an account